Steel structure civil air defense door
A technology for civil air defense doors and steel structures, applied in the field of civil air defense doors, can solve problems such as poor impact resistance and poor safety, and achieve the effects of strong adaptability, improved safety, and improved risk protection capabilities.
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Embodiment 1
[0028] refer to Figure 1-3 As shown, it is a steel structure civil air defense door in a preferred embodiment of the present invention, including a structure cabin 1 and a base 2, the structure cabin 1 is a frame of a concrete structure, and a groove is provided in the middle for placing the base 2 to carry out For the operation of lifting, a slide groove 3 is arranged inside the structure cabin 1, a slide groove 8 is arranged inside the structure cabin 1, a support frame 7 is slidably installed in the slide groove 8, and a support frame 7 is fixedly installed under the support frame 7 The door body 4, the middle part of the door body 4 is provided with a reinforcing rib 15, and the reinforcing rib 15 adopts an aluminum alloy structure, which has good mechanical structural strength. The middle part of the door body 4 is provided with a perspective mirror 16, and the perspective mirror 16 It is made of tempered glass, and when the civil air defense door is closed, the situatio...
Embodiment 2
[0032] Compared with Example 1, there are following differences, such as Figure 5 As shown, the right side of the rotating shaft 13 is provided with a crank handle 21, and the rotating shaft 13 is a Z-shaped rotating shaft. The stripes are used for manual use in emergency situations, and can realize lifting and lowering of the door body 4 by hand, with stronger adaptability, when unexpected situations occur.
[0033] The specific implementation process: turn the handle 21, drive the rotating shaft 13 and the gear 12 to rotate through the speed change of the gearbox 20, drive the rack 11 to move up and down through the rotation of the gear 12, and drive the door body 4 as a whole through the rack 11. The lifting is guided by the structural design of the support frame 7 and the chute 8, and the stability of the structure is improved to realize the vertical lifting of the door body 4. This structure can resist greater side impact force, thereby increasing the danger of the air d...
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